College Mathematics for Business, Economics, Life Sciences, and Social Sciences, Twelveth Edition, (with Raymond A. Barnett and Michael R. Ziegler) Prentice-Hall, 2011.
Embedding any countable semigroup in a 2-generated congruence-free semigroup, Semigroup Forum 41 (1990) 145-153.
Embedding any countable semigroup without idempotents in a 2-generated simple semigroup without idempotents, Glasgow Math. J. 30 (1988), 121-128.
Karl Byleen, and Francis Pastijn. Implications for Semigroups Embeddable in Orthocryptogroups, Rocky Mountain Journal of Mathematics 17 (1987), 463-478.
Karl Byleen. Inverse Semigroups With Countable Universal Semilattices, Semigroups and Their Applications: Proceedings of the International Conference Held at the California State University, April 10-12, 1986 (edited by Simon M. Goberstein and Peter M. Higgins), D. Reidel (1987), pp. 37-42.
The Department of Mathematics, Statistics and Computer Science hosted a Summer 2015 Research Experience (REU) for Undergraduates. This program provides undergraduates with an intensive, faculty-mentored, summer research experience in the areas of applied mathematics, high-performance computing, statistics, ubiquitous systems and mathematics education. Learn more